| Message ID | 20200528225350.661-4-r-rivera-matos@ti.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Add JEITA properties and introduce the bq2515x charger | expand |
On Thu, May 28, 2020 at 05:53:49PM -0500, Ricardo Rivera-Matos wrote: > The BQ2515X family of devices are highly integrated battery management > ICs that integrate the most common functions for wearable devices > namely a charger, an output voltage rail, ADC for battery and system > monitoring, and a push-button controller. > > Datasheets: > http://www.ti.com/lit/ds/symlink/bq25150.pdf > http://www.ti.com/lit/ds/symlink/bq25155.pdf > > Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com> > --- > .../bindings/power/supply/bq2515x.yaml | 91 +++++++++++++++++++ > 1 file changed, 91 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/supply/bq2515x.yaml > > diff --git a/Documentation/devicetree/bindings/power/supply/bq2515x.yaml b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml > new file mode 100644 > index 000000000000..19cb336d581e > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml > @@ -0,0 +1,91 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright (C) 2020 Texas Instruments Incorporated > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/power/supply/bq2515x.yaml#" > +$schema: "http://devicetree.org/meta-schemas/core.yaml#" > + > +title: TI bq2515x 500-mA Linear charger family > + > +maintainers: > + - Dan Murphy <dmurphy@ti.com> > + - Ricardo Rivera-Matos <r-rivera-matos@ti.com> > + > +description: | > + The BQ2515x family is a highly integrated battery charge management IC that > + integrates the most common functions for wearable devices, namely a charger, > + an output voltage rail, ADC for battery and system monitoring, and > + push-button controller. > + > + Specifications about the charger can be found at: > + http://www.ti.com/lit/ds/symlink/bq25150.pdf > + http://www.ti.com/lit/ds/symlink/bq25155.pdf > + > +properties: > + compatible: > + enum: > + - ti,bq25150 > + - ti,bq25155 > + > + reg: > + maxItems: 1 > + description: I2C address of the charger. > + > + ac-detect-gpios: > + description: | > + GPIO used for connecting the bq2515x device PG (AC Detect) > + pin. > + maxItems: 1 > + > + reset-gpios: > + description: GPIO used for hardware reset. > + maxItems: 1 > + > + powerdown-gpios: > + description: GPIO used for low power mode of IC. > + maxItems: 1 > + > + charge-enable-gpios: > + description: GPIO used to turn on and off charging. > + maxItems: 1 > + > + input-current-limit-microamp: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: Maximum input current in micro Amps. > + minimum: 50000 > + maximum: 500000 > + > + monitored-battery: > + $ref: battery.yaml# This doesn't work. It's saying monitored-battery is a node containing all the properties in battery.yaml. > + > +required: > + - compatible > + - reg How is the battery optional? > + > +additionalProperties: false > + > +examples: > + - | > + bat: battery { > + compatible = "simple-battery"; > + constant-charge-current-max-microamp = <50000>; > + precharge-current-microamp = <2500>; > + constant-charge-voltage-max-microvolt = <4000000>; > + }; > + #include <dt-bindings/gpio/gpio.h> > + i2c0 { > + #address-cells = <1>; > + #size-cells = <0>; > + > + bq25150: charger@6b { > + compatible = "ti,bq25150"; > + reg = <0x6b>; > + monitored-battery = <&bat>; > + input-current-limit-microamp = <100000>; > + > + ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; > + reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; > + powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>; > + charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; > + }; > + }; > -- > 2.26.2 >
diff --git a/Documentation/devicetree/bindings/power/supply/bq2515x.yaml b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml new file mode 100644 index 000000000000..19cb336d581e --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2020 Texas Instruments Incorporated +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/supply/bq2515x.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: TI bq2515x 500-mA Linear charger family + +maintainers: + - Dan Murphy <dmurphy@ti.com> + - Ricardo Rivera-Matos <r-rivera-matos@ti.com> + +description: | + The BQ2515x family is a highly integrated battery charge management IC that + integrates the most common functions for wearable devices, namely a charger, + an output voltage rail, ADC for battery and system monitoring, and + push-button controller. + + Specifications about the charger can be found at: + http://www.ti.com/lit/ds/symlink/bq25150.pdf + http://www.ti.com/lit/ds/symlink/bq25155.pdf + +properties: + compatible: + enum: + - ti,bq25150 + - ti,bq25155 + + reg: + maxItems: 1 + description: I2C address of the charger. + + ac-detect-gpios: + description: | + GPIO used for connecting the bq2515x device PG (AC Detect) + pin. + maxItems: 1 + + reset-gpios: + description: GPIO used for hardware reset. + maxItems: 1 + + powerdown-gpios: + description: GPIO used for low power mode of IC. + maxItems: 1 + + charge-enable-gpios: + description: GPIO used to turn on and off charging. + maxItems: 1 + + input-current-limit-microamp: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Maximum input current in micro Amps. + minimum: 50000 + maximum: 500000 + + monitored-battery: + $ref: battery.yaml# + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + bat: battery { + compatible = "simple-battery"; + constant-charge-current-max-microamp = <50000>; + precharge-current-microamp = <2500>; + constant-charge-voltage-max-microvolt = <4000000>; + }; + #include <dt-bindings/gpio/gpio.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + bq25150: charger@6b { + compatible = "ti,bq25150"; + reg = <0x6b>; + monitored-battery = <&bat>; + input-current-limit-microamp = <100000>; + + ac-detect-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; + powerdown-gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>; + charge-enable-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; + }; + };
The BQ2515X family of devices are highly integrated battery management ICs that integrate the most common functions for wearable devices namely a charger, an output voltage rail, ADC for battery and system monitoring, and a push-button controller. Datasheets: http://www.ti.com/lit/ds/symlink/bq25150.pdf http://www.ti.com/lit/ds/symlink/bq25155.pdf Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com> --- .../bindings/power/supply/bq2515x.yaml | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/bq2515x.yaml